Agree with the above, work out what each KW is worth in terms of revenue, however, there are many KW, depending how LT and varied the KW are, that can be targetted within the same page without seeing the list of KW though, it would be difficult to estimate. We've often managed top 3 results for closely related groups of 3/4 variations around a keyword so qualifiers like "cheap" + main keyword or "buy" + main keyword (relating to price/purchase) and also quality like "boutique" or "luxury" or "budget".